轨道计算

In addition, the solubility mechanism of water in silicate melts is also discussed on the basis of the influence of alkaline components on solubility of water. And this is accordance with Sykes' conclusion according to molecular orbital calculation and Raman,FTIR spectroscopy to research the solubility mechanism in aluminosilicate melts.

此外，根据碱金属组分对水在硅酸盐熔体中溶解度的影响对水的溶解机制进行了论述，这与Sykes等通过分子轨道计算和拉曼、红外光谱研究得出的水在铝硅酸盐熔体中的溶解机理是一致的。

According to this difficulty,a kind of fast calculation method of satellite orbit-extract the orbit's control points is put forward,and perspective frustum is combined to judge the orbit's visibility.

根据北美防空防天司令部发布的预报[1]，目前在轨卫星和空间碎片的总数是12542，如若同时对这些空间目标进行轨道计算，计算的目标相当多，计算量势必会很大，仿真

The main task is the orbit computation including the orbit determination and prediction.

主要任务是卫星轨道计算包括轨道测定及预估。

In order to provide orbit completion for Chinese lunar explore project, it was founded the lunar satellite orbit determination model and software by us.

为了对中国月球探测工程的提供轨道计算支持，我们研究建立了自己的月球卫星轨道确定模型和软件。

Chapter 3 analyzes numerically the effects for orbit calculation caused by orbital perturbation, parameter error and so on. A precise mathematical model of orbit calculation is given.

第三章通过数值法分析了各项轨道摄动和参数误差等因素的对轨道计算的影响，给出了精确的月球探测器轨道计算数学模型。

We discuss the effect on the clusters orbits caused by different Galacticpotential models and different values of the cluster proper motion.

本文进一步讨论了绝对自行值的不同对M3轨道计算结果的影响。

We discuss the effect on the cluster's orbits caused by different Galactic potential models and different values of the cluster proper motion.

本文进一步讨论了绝对自行值的不同对M3轨道计算结果的影响。

Its photoluminescent mechanism has been studied with molecular orbital calculations, showing that the photoluminescent properties are both π〓→π〓 transition of the uncoordinated phen molecules and metal-to-ligand charge transfer , admixed with the cyanide-to-ligand charge transfer of the molecules.

通过分子轨道计算研究了配合物的光致发光机理，显示它的荧光性质既有未配位的phen分子的π〓→π〓跃迁，又有分子的金属到配体的电荷转移跃迁同时混合了部分的氰根到配体的电荷转移跃迁。

In the direct-location, with the precise model of satellite motion and its osculating parameters, a more accurate formula for the orbit calculation of satellite is obtained. Meanwhile, the determination of the position information of each pixel is more accurate with the precise model of earth shape.

二、直接定位中，通过建立精确的卫星运动轨道模型、卫星摄动模型，优选确定了卫星轨道计算公式，以提高卫星轨道计算精度；同时，采用对称椭球体的地球形态模型和融入卫星姿态的地面扫描点位置的计算方法，可使确定的地面扫描点的地理位置更精确。

Through the project, domestic GPS receiver/chip manufacturers have been surveyed, GPS signal simulations for coverage, signal quality, tracking loop, and positioning accuracy have been performed, a GPS receiver prototype has been implemented to overcome limitations due to high altitude, high speed, rapid Doppler variations, and vehicle motions, performance tests with other receivers have been conducted, and, finally, a specification for the development domestic spaceborne GPS receiver has been recommended.

本计画之主要成果包括完成国内相关厂商之资料收集、访查、与分析建议，完成太空级GPS接收机之模拟分析包括讯号观测、讯号品质、追踪回路、定位计算等，完成GPS接收机工程雏形系统之建立并针对高度/速度限制、都卜勒变化、快速撷取、与轨道计算进行韧体发展，及进行GPS接收机工程雏形系统与现有GPS接收机之功能与性能测试，及完成国产太空级GPS接收机之规格建议。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。